131572480

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7907}}^1$

素因数の和:7941

約数の個数: 72

約数和(自身を含む): 339442992

約数和(自身を除く): 207870512

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 7907, 8320, 15814, 16640, 31628, 39535, 63256, 79070, 102791, 126512, 158140, 205582, 253024, 316280, 411164, 506048, 513955, 632560, 822328, 1012096, 1027910, 1265120, 1644656, 2024192, 2055820, 2530240, 3289312, 4111640, 5060480, 6578624, 8223280, 10120960, 13157248, 16446560, 26314496, 32893120, 65786240, 131572480]

約数ペア:

[(1, 131572480), (2, 65786240), (4, 32893120), (5, 26314496), (8, 16446560), (10, 13157248), (13, 10120960), (16, 8223280), (20, 6578624), (26, 5060480), (32, 4111640), (40, 3289312), (52, 2530240), (64, 2055820), (65, 2024192), (80, 1644656), (104, 1265120), (128, 1027910), (130, 1012096), (160, 822328), (208, 632560), (256, 513955), (260, 506048), (320, 411164), (416, 316280), (520, 253024), (640, 205582), (832, 158140), (1040, 126512), (1280, 102791), (1664, 79070), (2080, 63256), (3328, 39535), (4160, 31628), (7907, 16640), (8320, 15814)]